Next you looked at some Joda concepts, and then how to use Joda to do date calculations and formatting.

然后介绍了一些Joda概念，以及如何使用Joda执行日期计算和格式化。

youdao

Date calculations aren't difficult in Geronimo systems, as Calendar and Date classes are defined for you.

日期计算在Geronimo系统中并不困难，因为定义了Calendar和date类。

youdao

And in my most recent engagement - in the insurance industry - correct date calculations are especially important.

并且在我的最新项目中—保险行业—纠正日期计算尤其重要。

youdao

It is celebrated on 21 March every year, a date originally determined by astronomical calculations.

UNESCO: Culture

No servicer has a data repository with automated processing rules designed to keep files and calculations up to date with the constant changes.

FORBES: JPMorgan Chase Still Haunted By Foreclosure Reviews, And More

When that day came and went, Weinland amended his calculations, claiming an error and revising the date to May 27, 2012.

FORBES: Man Who Touted 'End of the World' Guilty of Tax Evasion